Re this--for the life of me I can't think of a currently known alternative to tires that wouldn't have more or less this same issue. Something has to be invented and fast:
Road Hazard: Evidence Mounts on Toxic Pollution from Tires
Researchers are beginning to uncover the toxic cocktail of chemicals, microplastics, and heavy metals hidden in car and truck tires. Experts say these tire emissions are a significant source of pollution affecting humans and wildlife.
https://e360.yale.edu/features/tire-pollution-toxic-chemicals